CAJ | 학술논문

细菌性果斑病（BFB）是西瓜上的毁灭性病害，育苗工厂因BFB的发生而导致的经济损失严重，本研究旨在探明西瓜嫁接育苗过程中带菌砧木种子和灌溉方式对嫁接苗BFB发生的影响。砧木种子人工接菌后，以带菌砧木幼苗和健康接穗为材料，采用不同的方法嫁接，结果发现， BFB病菌通过嫁接从砧木传递到接穗，导致嫁接苗BFB的发生，不同嫁接方法对BFB的发生无显著差异。发病嫁接苗移栽至健康嫁接苗群体，采用不同灌溉方式提供水分，结果发现，上部喷灌有利于BFB病菌传播，可加剧病情扩展，潮汐灌溉能有效地控制嫁接苗BFB的发生与扩展。
세균성과반병（BFB）시서과상적훼멸성병해，육묘공엄인BFB적발생이도치적경제손실엄중，본연구지재탐명서과가접육묘과정중대균침목충자화관개방식대가접묘BFB발생적영향。침목충자인공접균후，이대균침목유묘화건강접수위재료，채용불동적방법가접，결과발현， BFB병균통과가접종침목전체도접수，도치가접묘BFB적발생，불동가접방법대BFB적발생무현저차이。발병가접묘이재지건강가접묘군체，채용불동관개방식제공수분，결과발현，상부분관유리우BFB병균전파，가가극병정확전，조석관개능유효지공제가접묘BFB적발생여확전。
Bacterial fruit blotch (BFB) of cucurbits, caused by Acidovorax avenae subsp. citrulli (Aac), is one of the most devastating diseases for watermelon. In recent years, BFB has caused significant economic losses in the grafted seedling production. In this paper, we investigated the effects of contaminated rootstock seeds and irrigation methods on BFB occurrence in the production process of grafted watermelon seedlings. The rootstock seeds were inoculated Aac artificially, and healthy scions were grafted onto inoculated rootstocks by different grafting methods. The results showed that inoculated rootstock could spread BFB pathogens to scion through grafting, leading to BFB occurrence of grafted seedlings, and different grafting methods had no significant difference on BFB occurrence. After transplanting inoculated grafted seedlings with healthy grafted seedlings, we found that tidal irrigation could significantly reduce BFB occurrence of grafted seedlings compared with upper sprinkler irrigation.